精确定年的祁连圆柏碳十四年代的加速器质谱测定

Accelerator Mass Spectrometry Measurement of the Dendrochron- ology-calibrated ^(14)C Date of the Chinese Juniper Samples from the Qilian Mountains Region

1949年，碳十四断代的创始人利比（W．F。Libby）公布了第一批碳十四年代数据，宣告碳十四测年方法取得成功，轰动了整个考古界和地质学界。碳十四测年方法对考古学研究产生了深远的影响。尤其在史前年代方面起到了不可估量的作用。已故著名考古学家夏鼐先生对碳十四测年方法在考古年代中的作用，给予了极高的评价：“由于碳十四测定年代法的采用，使不同地区的各种新石器文化有了时间关系的框架，使中国新石器时代考古学有了确切年代序列而进入一个新时代”。

Using the AMS method, the radiocarbon concentration of ten samples each with ten tree rings, dendrochronology-dated from 420BC to 320 BC, part of Plank XTT302 of Tomb 3 at Xiatatu of Guolimu Towship in Delingha, Qinghai Province, were measured. It can be concluded that the results match well with IntCa104 and INTCAL98, and the AMS technique requires only a little quantity of wood samples. It shows that the results of the dendrochronology and AMS measurement of this sample are precise.